This panel contains a list of schedules that can be used to start and stop the email sending, this item is useful if you want to schedule sending of email overnight for example, but then stop at some time when the traffic is heavier

You can create, edit, and remove different start and end times for the mailing. Here is how you do that:

Use Item-Add of the main menu or Add button on Link Bar or Insert button on the keyboard to add items to a list.

Use Item-Delete of the main menu or Delete button on Link Bar or Delete key on the keyboard to delete items from list.

Use Item-Edit of the main menu or Edit button on Link Bar or F4 button on the keyboard to change selected items in list.

Use Item-Enabled of the main menu or just press Space key on the keyboard to enable or disable selected items in list.

Use Search-Find of the main menu or Find button on Link Bar or Ctrl+F key sequence on the keyboard to Find items in list.

Use Search-Find Next item of the main menu or press Find Next on Link Bar or press F3 key on the keyboard to continue searching.